[builtins] Construct builtin frame in String/Number ctors

src/ia32/macro-assembler-ia32.h

Index: src/ia32/macro-assembler-ia32.h
diff --git a/src/ia32/macro-assembler-ia32.h b/src/ia32/macro-assembler-ia32.h
index 9c78987a49ca8de46dbaadc1b02d82a105dbd248..e682663e4f05222af26302bf0cdcd730784418ff 100644
--- a/src/ia32/macro-assembler-ia32.h
+++ b/src/ia32/macro-assembler-ia32.h
@@ -932,6 +932,9 @@ class MacroAssembler: public Assembler {
   void EnterFrame(StackFrame::Type type, bool load_constant_pool_pointer_reg);
   void LeaveFrame(StackFrame::Type type);
 
+  void EnterBuiltinFrame(Register context, Register target, Register argc);
+  void LeaveBuiltinFrame(Register context, Register target, Register argc);
+
   // Expects object in eax and returns map with validated enum cache
   // in eax.  Assumes that any other register can be used as a scratch.
   void CheckEnumCache(Label* call_runtime);